Governor for internal-combustion engines



July 21, 1925 1,547,128

J. M. MEYERS GOVERNOR FQR INTERNAL COMBUSTION ENGINES Filed Jan. 30, 1920 awvem/toz p Q6 @Zgzenr new and useful Improvements in Patented July 21, 1925.

UNITED STATES PATENT OFFICE.

JOHN M. MEYERS, 0F JANESVILLE, WISCONSIN, ASSIGNOR TO DURANT ENGINEERING CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

GOVERNOR FOR INTERNAL-COMBUSTION ENGINES.

I Application filed January 30, 1920. Serial No. 355,270.

To all whom it may concern:

Be it known that I, JOHN M. MEYERS, a'citizen of the United States, and a resident of Janesville, county of Rock, and State of Wisconsin, have invented certain Governors for Internal-Combustion Engines, of which the following is a full, clear, concise, and exact description, such as will enable others skilled in the art to which the invention relates to make and use the same, reference being made therein to the accompanying drawings, which form a part of this specification.

This invention relates to valve devices designed to provide for an automatic, or a combined manual and automatic, control of the flow of a fluid and more specifically to valve devices of particular utility for use in controlling the flow of combustible mixture to an internal combustion engine and therebygoverning the speed of the engine.

Devices of this character are already known in which the flow of the mixture is caused toactuate some form of throttling mechanism and it is one of the objects of my invention to improve the construction of speed governors of this type whereby a substantially umform speed of the engine may be automatically maintained by means of a. very simple and easily constructed gravity actuated device.

A further object is to provide, in a unitary control device, an automatic speed governor and a manually operable throttle valve.

A further object is to provide a speed governor actuated primarily by the flow of the combustible mixture with an auxiliary I positive actuating means which may be operated manually or otherwise. 7

A further object is to provide a control device of this character which shall be capable of being added to existing constructions of carbureters without material change, or which may be combined with a carbureter in a unitary structure.

A further object is to provide an improved flow-controlling device of general application for automatically maintaining substantially constant flow of fluid through form of valve mechanism embodying my invention,

Fig. 8 is a similar view of a modified form, and

Fig. 4 is a perspective view of a valve member which may be employed in the structure shown in Fig. 2.

In the drawing, 10 indicates an internal combustion engine which may be of any usual or. desired construction, and which is provided with the usual intake manifold 11 and carbureter 12. A casing 13 may be secured to the, intake by means of mating flanges 14, 15, and bolts 16, and to the carburete'r by bolts 18 passing through the flange 17 and the bottom of the casing. A throttle valve 19 of'conventional form, operable by rod 20 may be located in the delivery conduit of the carburetor.

The. casing 13 is preferably of considerably greater diameter than the adjoining sections of the carbureter outlet and the intake manifold in order to provide sufficient interior cross-sectional area to accommodate the amount of mixture to be delivered to the engine without materially throttling the flow. Centrally positioned in the casing is a cup or pan 21, supported by bridge elements 22 from the wall of the casing. The inner surface of the side walls of this cup 21 is in Vertical alignment with the inner surface 23 of the delivery end of the casing13, and these surfaces are suitably finished to serve as guides for the hollow cylindrical or sleeve valve member 24.

The valve member is as shown of inverted cup shape, the upper portion 25 being preferably conical and provided with perforations 26. The combined area of the perforations should be substantially equal to the cross-sectional area of the intake in order not to obstruct unduly the normal flow of mixture. The conical formation above referred to is of advantage in this connection since I provide a greater area of material in which perforations may be formed. The transverse wall, shown as an end wall, may, of course, be positioned at some other location in the sleeve valve Without varying the effect, provided it be so positioned that the gas must fiow therethrough.

The side wall of the valve member 24 is provided with a row of apertures 27, which are preferably of triangular form with the wider ends at the top. The row of apertures is so positioned that when the valve member is in its lowest position, or is seated on the bottom of cup 21, the apertures 27 will be just above the side wall of the cup and will communicate throughout their entire area with the annular passage 28 between the cup and the wall of the casing 13.

In the operation of this form of the device, the valve 24 is designed to remain in its lowermost position when the engine is running at low speed, the area of the passage 28 and the apertures 27 and the perforations 26 being such as to accommodate the flow of mixture as freely therethrough as through the intake and therefore having no material throttling effect and tending to produce no material lowering of the efficiency of the engine. When thespeed tends to become excessive, however, the flow of mixture against the top 25 of the valve member will lift the said member thereby bringing the apertures gradually out of register with the passage 28 and thereby controlling the flow of mixture.

In. the form illustrated in Fig. 3, I have shown the casing 13, corresponding in function and interior arrangement to casing 13, as being formed in one piece with the casing 29, of a carbureter, the latter being of any desired type and comprising, for example, the nozzle 30' and venturi 31. The valve 24 I have shown as having in the center of its conical top an aperture 32' through which extends loosely the rod 33 having the head 34 and connected to arm 35. The arm 35 may be rigidly connected to rock shaft 36 adapted to be actuated by lever 37 connected by rod 38 to any usual or suitable operating means.

In this form of the invention it will be understood that the valv member 24, since it is loosely connected 'to link 33, Will be free to rise under the influence of the current of gas, thereby automatically limiting the flow, and that it may also be lifted by manual or other actuating means by reciprocation of the rod 38, thereby providing means for positive operation of the valve as a throttling device.

IVhile I have described my invention as applied to and of especial utility in connection with the control of the speed of an internal combustion engine it will be understood that the invention in its broader phases is not in any way limited to use in that connection but may be employed in any relationship where it is desired to maintain. a substantially uniform flow of gas.

It is obvious also that various changes in details of construction may be made without departing from the spirit and scope of the invention and therefore I do not wish to be limited to the specific structure above described.

I have referred to the operating device 38 as being manually actuated but I do not desire to be limited to such method ,of actuation as it will be understood by. those skilled inv the art that operating devices dependent upon speed or other conditions might be so connected as to cause proper positive adjustment of the throttling device shown.

I claim:

1. The combination of a supply device, a supply conduit, a valve casing interposed between said device and said conduit, and a governor comprising a vertically movable sleeve valve having apertures in its side wall, said valve 'being slidably mounted in said casing and arranged to be lifted in response to increased flow to a position to throttle such flow through said apertures, and means adapted to lift said valve posi tively to a position to throttle the flow, said means including connections adapted to permit free movement of the valve in response to increased flow independently of said positive actuating means.

2. The combination of a conduit, a casing connected to deliver gas to said conduit, a cup supported in said casing, a passage being provided around said cup, and a hollow cylindrical valve having apertures in its side and a perforated end wall mounted to reciprocate in said cup, said side apertures being in register with said passage in one position of said valve, the gas delivered to said conduit being caused to pass both through said perforated end wall and through said apertures the perforations of said end wall having a combined area substantially equal to the cross sectional area of said conduit.

3. The combination with a carbureter and intake manifold of a casing between said carbureter and intake, a hollow cylindrical valve in said casing having apertures in its side wall and a perforated transverse wall, a passage in said casing adapted to deliver gas to said apertures, said transverse wall adapted to receive impact of said gas and move said valve in a direction to limit flow through said apertures, and means connected to said transverse wall for moving said valve positively to throttle the flow of gas.

4. The combination of a carbureter, an

intake manifold, a valve casing interposed between said carbureter and said manifold, a throttle valve in said casing comprising a Vertically movable sleeve valve, manually operable means mounted in said casing above said valve and adapted to lift the valve and thereby throttle the flow of mixture, the said means including a lost motion connection whereby the valve may be actuated by flow of mixture independently of 1 said means.

In testimony whereof I affix my signature.

- JOHN M. MEY'ERS. 

